Software evaluates qubits, characterizes noise in quantum annealers
High-performance computer users in the market for a quantum annealing machine or looking for ways to get the most out of one they already have will benefit from a new, open-source software tool for evaluating these emerging platforms at the individual qubit level.
Sculpted by starlight: A meteorite witness to the solar system's birth
In 2011, scientists confirmed a suspicion: There was a split in the local cosmos. Samples of the solar wind brought back to Earth by the Genesis mission definitively determined oxygen isotopes in the sun differ from those found on Earth, the moon and the other planets and satellites in the solar system.
Constructed wetlands are best protection for agricultural runoff into waterways
A new paper from a lead author based at the University of Kansas finds wetlands constructed along waterways are the most cost-effective way to reduce nitrate and sediment loads in large streams and rivers. Rather than focusing on individual farms, the research suggests conservation efforts using wetlands should be implemented at the watershed scale.
Male dragonflies lose their 'bling' in hotter climates
A study published the week of July 5 in the Proceedings of the National Academy of Sciences led by Michael Moore at Washington University in St. Louis finds that dragonfly males have consistently evolved less breeding coloration in regions with hotter climates.
Seabird colony creates 'halo' of depleted fish stocks
A vast seabird colony on Ascension Island creates a "halo" in which fewer fish live, new research shows.
Fossil shark scales provide a glimpse of reef predator populations before human impact
Scientists recently made news by using fossil shark scales to reconstruct shark communities from millions of years ago. At the same time, an international team of researchers led by UC Santa Barbara ecologist Erin Dillon applied the technique to the more recent past.
How fish got their spines
In the movie "A Fish Called Wanda," the villain Otto effortlessly gobbles up all the occupants of Ken`s fish tank. Reality, however, is more daunting. At least one unfortunate fan who re-enacted this scene was hospitalized with a fish stuck in the throat. This was also was a painful lesson in ichthyology (the scientific study of fishes)—namely that the defense of some fishes consists of...
Ancient bone carving could change the way we think about Neanderthals
The design may be simple, but a chevron pattern etched onto a deer bone more than 50,000 years ago suggests that Neanderthals had their own artistic tradition before modern humans arrived on the scene, researchers said Monday.
Underground microbial solutions to aboveground plant problems
Land plants—those that live primarily in terrestrial habitats and form vegetation—are anchored to the ground through their roots, and their performance depends on both the underground soil conditions and the aboveground climate. Plants use sunlight to grow through the process of photosynthesis where light energy is converted to chemical energy in chloroplasts, the powerhouses of plant cells....
Astronomers discover an oversized black hole population in the star cluster Palomar 5
Palomar 5 is a unique star cluster. In a paper published today in Nature Astronomy, an international team of astrophysicists led by the University of Barcelona show that distinguishing features of Palomar 5 are likely the result of an oversized black hole population of more than 100 of them in the center of the cluster.
Global BECCS potential is largely constrained by sustainable irrigation
A new collaborative study led by researchers from the National Institute for Environmental Studies, Potsdam Institute for Climate Impact Research, Ritsumeikan University, and Kyoto University found that although unlimited irrigation could increase global BECCS potential (via the increase of bioenergy production) by 60-71% by the end of this century, sustainably constrained irrigation would...
Biogeography of tetrastigma fleshes out Asia-Australian floristic exchange history
How did biotic exchange between Asia and Australia occur across the geologically and topographically complex Malesian region in space and time? A new case study published in Cladistics has shed light on this question.
Researchers discover unusual competition between charge density wave and superconductivity
A research team led by Prof. Chen Xianhui from University of Science and Technology of China of the Chinese Academy of Sciences (CAS) found an unusual competition between charge density wave (CDW) and superconductivity in CsV3Sb5, a layered kagome metal, which provides key experimental evidence for understanding novel CDW and superconductivity. The result was published in Nature Communications and...
Image: This camera will be the eye of the ESA's asteroid mission
This is the main camera that ESA's Hera mission for planetary defense will be relying on to explore and maneuver around the Didymos asteroid system.
Alarmingly low rain levels prime California for fire danger in summer, fall
California has recorded alarmingly low levels of rain across the state over the last year, according to measurements completed this week, worsening an already bad drought and priming vegetation for a potential disastrous fire season.
Cyprus says huge forest blaze fully 'under control'
Firefighters in Cyprus said Monday they had brought under control the island's worst blaze on record, which ripped through mountain forests and farmland, killing four people and destroying scores of homes.
150 Algeria bathers sick after sea polluted: media
Nearly 150 people were hospitalised after swimming on Sunday in seawater suspected to have been polluted at Tenes in northwestern Algeria, a regional official said, quoted by local media.
Stress-free path to stress-free metallic films paves the way for next-gen circuitry
Researchers from Tokyo Metropolitan University have used high power impulse magnetron scattering (HiPIMS) to create thin films of tungsten with unprecedentedly low levels of film stress. By optimizing the timing of a substrate bias pulse with microsecond precision, they minimized impurities and defects to form crystalline films with stresses as low as 0.03 GPa, similar to those achieved through...
A 30% reduction in Wisconsin's wolf population
About 100 additional wolves died over the winter in Wisconsin as a result of the delisting of grey wolves under the Endangered Species Act, alongside the 218 wolves killed by licensed hunters during Wisconsin's first public wolf hunt, according to new research.
Wildfires during Permian-Triassic transition caused vegetation change in ecosystem
Wildfire is an important part of the terrestrial ecosystem. It plays a significant role in many environmental and evolutionary innovations in geological history.
Building a better biosensor polymer
A new organic (carbon-based) semiconducting material has been developed that outperforms existing options for building the next generation of biosensors. An international research team led by KAUST is the first to overcome some critical challenges in developing this polymer.
Geoscientists reveal icy crystal structures of hailstones
The Tübingen region has recently seen hailstorms that brought back memories of the devastating storm of 2013. At that time, billions of dollars in damage were caused, and the damage from the most recent storms is still being assessed. Despite all the trouble hailstones cause, they also possess a previously unknown inner beauty. In a recent study, Tübingen geoscientists Professor Paul Bons and...
Europa Clipper to determine whether icy moon has ingredients necessary for life
In 1610, Galileo peered through his telescope and spotted four bright moons orbiting Jupiter, dispelling the long-held notion that all celestial bodies revolved around the Earth. In 2024, when scientists expect to send the Europa Clipper spacecraft to investigate one of those moons, they too may find evidence that fundamentally alters our understanding of the solar system.
Scientists reconstruct Mediterranean silver trade, from Trojan War to Roman Republic
Scientists have reconstructed the Eastern Mediterranean silver trade over a period including the traditional dates of the Trojan War, the founding of Rome and the destruction of Solomon's Temple in Jerusalem. A team of French, Israeli and Australian scientists and numismatists found geochemical evidence for pre-coinage silver trade continuing throughout the Mediterranean during the Late Bronze and...
Waste hop stem in the beer industry upcycled into cellulose nanofibers
Some three quarters of the biomass in hop plants used in beer-making ends up in landfills. But a group of Japanese researchers has developed a technique that 'upcycles' that waste hop into cellulose nanofibers (CNFs). A paper describing the technique was published in the journal ACS Agricultural Science & Technology on June 11.